[postgis-devel] [PostGIS] #902: [raster] ST_MinMax

PostGIS trac at osgeo.org
Fri Apr 8 06:59:47 PDT 2011

#902: [raster] ST_MinMax
 Reporter:  dustymugs       |       Owner:  dustymugs            
     Type:  task            |      Status:  assigned             
 Priority:  medium          |   Milestone:  PostGIS Raster Future
Component:  postgis raster  |     Version:  trunk                
 Keywords:                  |  

Comment(by dustymugs):

 Additional variations of the ST_MinMax function

 ST_MinMax(rast raster, nband int, ignore_nodata boolean) -> set of record
 (min float8, max float8)

   instruct the function to ignore NODATA values in the band

 ST_MinMax(rast raster, ignore_nodata boolean) -> set of record (min
 float8, max float8)

   assume band index = 1

 The prior two versions of the function

 ST_MinMax(rast raster, nband int) -> set of record

 ST_MinMax(rast raster) -> set of record

 will also assume that ignore_nodata is TRUE.

Ticket URL: <http://trac.osgeo.org/postgis/ticket/902#comment:2>
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